At 07:26 24-11-07, you wrote:
>Hi Everyone,
>
>I'm posting this for a friend, Mike WBØSND:
>
> I'm putting up a temporary beam installation
> and need to know the appropriate kind of rope
> to use for guying the mast (poly, nylon, or ?).
Derek--
Poly, as in polypropylene rope, available
everywhere, suffers severe UV degradation
in a very short time period. I REALLY don't like
polypropylene! Don't waste your money.
Nylon is VERY stretchy and is not a good choice for that reason.
Polyethylene terephthalate (another POLY) is much better as a rope and is the
basis for the braid over braid style of rope from Synthetic Textiles Inc.
http://www.synthetictextilesinc.com/supportham.html
Dacron is a trade name Polyethylene terephthalate and another great rope is
the Samson Stable Braid ropes -- used for rigging and on yachts. But it is
somewhat expensive.
http://www.samsonrope.com/index.cfm
In any case what you want is a woven braid and not a twisted (lay) rope
which stretches and tries to unwind under load.
73 John W0UN
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